Improvement in heaters



2 SheetsSheet l.

E. CHADW'ICK.

HEATEB.

Patehted March 20,1877.

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mPErERs, PHOTO-UTMOQRAFNER, WASHINGTON. D. Cv

ZSheets-SheetZf E. CHADWICK.

HEATER.

,Patented March 20,1877.

PATENT EDWIN OHADWIOK, OF WESTFIELD, MASSACHUSETTS.

IMPROVEMENT IN HEATERS.

Specification forming part of Letters Patent No. 188,50 ii, dated March-30, 1877 application filed August 17, 1876. 1

To all whom it may concern:

Be it known that I, EDWIN CHADWIGK, of Westfield, in the county of Hampden and State of Massachusetts, have invented a new and useful Improved Heater; and that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, and to the letters of reference marked thereon.

My invention relates to aheater'fcr heating building's and-apartments therein and has for its object the arrangement of pipes and chambers, whereby a'large circulation of the heating medium is effected within a small space, and increased radiation is obtained.

To this end my invention consists of two sets of pipes, each set attached to, and communicating with, a series of chambers at each end, each chamber in the series at one end and in one set communicating with its opposite chamber in the other set, both sets being secured together and provided with. an inlet and outlet, as will be more fully hereinafter described.

Figure I is a perspective view of my inventionwith parts broken away to show internal constructiom Fig. II is a perspective view of one side of the heater, with a portion of the inside wall of the upper and lower casting broken away to show the partitions forming the series of chambers therein. Fig. III is a horizontal section of the uppercasting of the two sides or sets arranged together, showing the position of the partitions forming the chambers therein, and the openings of the pipes into the same; and Fig. IV is a hori zontal section of the lower casting, showing the partitions therein, and also the openings which provide communication between two lower castings.

In the drawings, A represents the lower casting, in which are the series of chambers F on one side of the heater; D, the castingin which are the series of chambers F on the same side of the heater, and 3 4. 7 8 11 12 indicate the pipes through which communication a is effected between the said upper and lower series of chambers, and these two castings and.

connecting-pipes are duplicated, forming two distinct sets of upper castings, pipes, and lower castings, whichare firmly secured together by means of bolts C, so that a continuous communication is provided between the two sets by openings made through the inner walls of the lower castings A, as will be more fully hereinafter described. The upper cast-ings D in both sets are divided into chambers F by the partitions e 6 extending across the castings inside, the said partitions in one side alternating in their position with those of the other side, as is clearly shown in Fig. III. The lower casting A is provided with partitions 11. extending across the casting inside between the pipes, as shown clearly in Fig. II, so that each pipe opens, at its lower end, into a chamber formed by two of said partitions,

and openings 1' are made through the inside wall of the casting A, one into each of the said chambers F as shown clearly in Fig. II, and also in Fig. IV, said openings being made in both lower castings A. The outer surface of the inner wall of each casting .A is made approximately smooth, and suitable packing materialplaced between, and both 'sets of castings and pipes (one being a duplicate of the other) are firmly secured together by bolts 0, which should pass through thepartitions n to avoid leakage, and the heater is ready for use.

Steam or hot water being admitted at the inlet B, it passes up the pipe 1 to the cham- I ber F, down the pipe 2 oil-the same side into the chamber F, thence through the openings 2' in the inner walls of each casting Ainto the opposite chamber F, up through the pipe3 to the next chamber F, thence down the same side through, the pipe 4 to the next lower chamber F, through the next openings t, up through the pipe.5, down the pipe 6', and so on, out through the outlet B opposite the point of entrance. v

By this arrangement a long circulating movement of theheatingmediumis eflected through a comparatively small coil or bulk of circulating space, which tends to a greater concentration and retention of the heat for radiating purposes. For use in such positions, when it may be difficult or inconvenient to use the drip, having its outlet at B, I close-that orifice, and leave out the partitions e and n in the castings D and A, and use the latteras two large chambersconnected by the pipes, and make them in duplicate and bolt them together, as before, as this method of making the heater in duplicate parts and bolting them together gives more radiating surface, and saves much expense over other construction.

It is evident that either steam or hot water may be used as the heating medium in this device with equal facility and with equally good results.

Having thus described my invention, what I claim as new is 1. An improved heater, consisting of the methods of combination of the casting A provided with partitions n, openings 6, and orifice B, the 

